If there’s 18 pink butterflies then if you look at the ration for every 3 pink butterflies there are 5 yellow butterflies, so divide 3/18 to get 6 the multiply 6*5 to get 30 yellow butterflies
Answer:
1/2
Step-by-step explanation:
Simple probability is a ratio of the number of ways the thing we want to happen can to the total possible outcomes.
(For example, we flip a coin and want heads, but it can land on heads or tails. Our probability of getting heads is 1/2, one way to get heads over the 2 possible outcomes)
So for this problem, there's 20 possible things that CAN happen (3 + 7 + 10) and 10 ways we get what we want (a green marble).
Our probability of getting a green marble is
, which simplifies to 
Step-by-step explanation:
Force = pressure * area
= 200 * 3.7
= 740 N
-6p < 12 Divide -6 on both sides to get "p" by itself

p > -2
When you divide or multiply a negative number to both sides of the inequality, the sign (< , > , ≤ , ≥) is flipped.